vmnic loses IP

[chicojr]

Were on vsphere 5.5

recently upgraded vmnics on two windows server 2003 r2 servers from E1000 to VMXNET3, now when DRS kicks in these two servers are migrated but obtain an appipa address (169.x.x.x) and vm loses its IP settings.

Please help!

VMtools have been upgraded.

Following this we think may resolve issues as well as updating vmhardware

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1179

[a_p_]

Can you please check whether the network adapter gets a new name (i.e. is detected as a new network adapter) after migrating the VM,

e.g. "LAN Connection", "LAN Connection 1", LAN Connection 2", ...

André

[Rahim_from_PSPL · Accepted solution]

Try deleting the old NIC & add new NIC and assign IP to nic.

As per me its a windows issue.

[chicojr]

Rahim,

I believe your correct but think that since we ran a script to change nic's out DRS kicks in and windows OS pukes. we just tested one vm and shut it down updated vmhardware and blew away old vmnic and added a new one and rebooted with no issues of losing IP as well as a vm migration.